Do you prefer your spacetime chunky or smooth?

Satellite mission will investigate whether reality is pixelated

Smooth Spreading

A new mission plans to determine once and for all whether spacetime is a smooth fabric or a chunky mess of discrete units.

Satellite Mission Will Investigate Whether Reality Is Pixelated

They want to probe the fabric of our universe.

Now it's impossible for a totally new reason!

A new model debunks a popular argument against time travel

Don't Need Roads

A new model for backwards time travel debunks one of the main reasons scientists assumed it was possible. But that doesn't make it any easier.

A New Model Debunks a Popular Argument Against Time Travel

A time machine wouldn't need to have negative mass, as many physicists believe.

Beyond a certain point near black holes, the laws of physics no longer apply.

Here's how you could survive being sucked into a black hole

Hard Science

Imagining what would happen if you were sucked into a black hole could help physicists unravel the mysteries of deep space.

Here's How You Could Survive Being Sucked Into a Black Hole

“Given that we don’t know what happens past the Cauchy horizon, it could be crazy things as long as they’re mathematically possible."

Here’s How You Could Survive Being Sucked Into a Black Hole

Is spacetime can be altered, then time itself can be altered.

We can't alter the course of time but, according to physics, we can bend it

James Beacham, a particle physicist at CERN, discusses time travel and if humans could ever manipulate the fundamental forces to alter the passage of time.

Time Travel: We Can't Alter The Flow of Time, But We Can Literally Bend It

Time travel is much more than a dream. It's science. 

We Can’t Alter The Flow of Time But, According to Physics, We Can Bend It

Ignoring all the paradoxes, here are simple ways to time travel.

Sci-Fi Visions

Watch: 3 Simple Ways to Time Travel (& 3 Complicated Ones)

The nature of reality is hinged on this question.

Watch: What is Space Really Made of?

Off World

A professor from UC Berkeley has put forward a new theory about time. He believes that the flow of time is concurrent with the current expansion of space. This theory would make time travel a physical impossibility.

The Physics of Time: Why Time Travel May Be Impossible

All of your dreams about time travel are about to be squashed. 

In a recent paper, a Stanford theoretical physicist develops a new equation, one which indicates that the key to finally connecting general relativity and quantum mechanics is found in bizarre spacetime tunnels called wormholes.

This New Equation Could Unite The Two Biggest Theories in Physics

In a new paper, a Stanford theoretical physicist shows that there may be a way to link general relativity and quantum mechanics.

Here, physics teacher Dan Burns shows us how we can visualize (and understand) the fabric of our cosmos in a way that is remarkably simplistic.

Visualizing The Fabric of Spacetime

Just because there are four dimensions doesn’t mean there’s a “fourth dimension.” It may sound confusing, but this is vitally important in relation to understanding how space and time work.

There are four dimensions, but that doesn't mean there's a "fourth dimension." This is vitally important in relation to understanding how space and time work

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